Lecture 9 Greedy Strategy

Exchange Property

Activity Selection Problem

Mathematical Model

Exchange Property

Self-Reducible Optimality

Greedy Algorithm

Optimality Proof

Huffman Codes

Problem

Binary Tree Representation

1 1 1 1 1

Huffman Tree Problem

Lemma

Exchange Property

Self-reducible Optimality

1 1 1 1 1

1 1 1 1 1

Idea of Construction

Greedy Construction

Minimum Spanning Tree

What we learnt in this lecture? How to find greedy algorithm. Exchange property. Structural Property of Optimal Solution Self-reducible optimality.

Puzzle

Solution 1 Solution 2

Thanks End